The term 'Go NUTS, with 'OUT'', can be solved by the crossword solutions WIG (3 letters) and FLIP (4 letters). WIG is an acronym for 'Wildly Impulsive Gestures', which is a phrase used to describe someone who acts impulsively and without thinking. FLIP stands for 'Freak OUT, Lose It, Panic', which is another phrase used to describe someone who is overwhelmed with emotion and reacts in a panicked manner. Both of these phrases are used to describe someone who has gone 'NUTS' or become overly emotional.